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Partname: | U2894B |
Description: | Modulation PLL for GSM, DCS and PCS Systems |
Manufacturer: | |
Datasheet: | PDF (802K). Click here to download *) |
The U2894B is a monolithic integrated circuit. It is realized using TEMIC's advanced silicon bipolar UHF5S technology. The device integrates a mixer, an I/Q modulator, a phase-frequency detector (PFD) with two synchronous programmable dividers, and a charge pump. The U2894B is designed for cellular phones such as GSM900, DCS1800, and PCS1900, applying a transmitter architecture at which the VCO operates at the TX output frequency. No duplexer is needed since the outof-band noise is very low. The U2894B exhibits low |
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Click here to download U2894B Datasheet*) |
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